package com.atguigu.gmall.user.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.atguigu.gmall.common.constant.RedisConst;
import com.atguigu.gmall.user.mapper.UserInfoMapper;
import com.atguigu.gmall.user.model.UserInfo;
import com.atguigu.gmall.user.service.UserInfoService;
import com.atguigu.gmall.user.util.AreaInfo;
import com.atguigu.gmall.user.util.BaiDuService;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;

/**
 * 用户表 业务实现类
 *
 * @author atguigu
 * @since 2023-05-04
 */
@Service
public class UserInfoServiceImpl extends ServiceImpl<UserInfoMapper, UserInfo> implements UserInfoService {

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 用户登录
     * 1.根据账号(登录名,手机号,邮箱号)查询用户记录
     * 2.将提交密码进行加密(md5)
     * 3.判断密码是否一致
     * 4.验证通过
     * 生成令牌UUID
     * 将用户信息存入Redis  key:uuid val:用户信息
     * 5.将生成令牌跟用户信息响应给客户端浏览器
     *
     * @param userInfo
     * @param httpServletRequest
     * @return
     */
    @Override
    public Map login(UserInfo userInfo, HttpServletRequest httpServletRequest) {
        //1.根据账号(登录名,手机号,邮箱号)查询用户记录
        LambdaQueryWrapper<UserInfo> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(UserInfo::getLoginName, userInfo.getLoginName());
        queryWrapper.or().eq(UserInfo::getEmail, userInfo.getLoginName());
        queryWrapper.or().eq(UserInfo::getPhoneNum, userInfo.getLoginName());
        ////2.将提交密码进行加密(md5)
        UserInfo loginUser = this.getOne(queryWrapper);

        //3.判断密码是否一致
        String userEnterPwd = DigestUtils.md5DigestAsHex(userInfo.getPasswd().getBytes());
        if (loginUser.getPasswd().equals(userEnterPwd)) {
            //4.验证通过
            // 4.1生成令牌UUID  user:uuid
            String token = UUID.randomUUID().toString().replaceAll("-", "").toString();
            String userKey = RedisConst.USER_KEY_PREFIX + token;
            // 4.2 将用户信息存入Redis  key:uuid val:用户信息
            JSONObject userInfoJsonObj = new JSONObject();
            userInfoJsonObj.put("id", loginUser.getId());
            //todo 通过第三方服务 根据IP获取城市
            //String ipAddress = IpUtil.getIpAddress(httpServletRequest);
            String ipAddress = "221.220.109.97";
            AreaInfo area = BaiDuService.getArea(ipAddress);
            if (area != null) {
                //todo 存储设备唯一标识,需要手机端获取手机硬件信息并提交服务端
                userInfoJsonObj.put("ipCity", area.getCity());
            }
            redisTemplate.opsForValue().set(userKey, userInfoJsonObj, 30, TimeUnit.HOURS);

            // 5.将生成令牌跟用户信息响应给客户端浏览器
            HashMap<String, Object> mapResult = new HashMap<>();
            mapResult.put("token", token);
            mapResult.put("nickName", loginUser.getNickName());
            return mapResult;
        } else {
            throw new RuntimeException("用户名密码错误!");
        }
    }


    /**
     * 用户退出:将当前用户登录时存入Redis中令牌删除
     */
    @Override
    public void logout(String token) {
        //1.构建用户登录存入token Key
        String tokenKey = RedisConst.USER_KEY_PREFIX + token;
        //2.删除即可
        redisTemplate.delete(tokenKey);
    }
}
